It takes guts to make a device with push-buttons in a touch-screen world, but in every way they're a better interface for a 1" screen, that is totally obscured by most digits.
It also takes guts to use a dull e-ink screen, but it's perfect - always on, battery lasts for a week (still!), and combined with the beautiful animations of the OS it looks fantastic.
I wish there were more device companies out there with the guts to use mature, if slightly dated tech to build amazing products, rather than try and make everything voice activated just because they can, even if it makes for a worse experience over all.